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| // SPDX-License-Identifier: GPL-2.0-only
| /*
| * Generic PowerPC 44x platform support
| *
| * Copyright 2008 IBM Corporation
| *
| * This implements simple platform support for PowerPC 44x chips. This is
| * mostly used for eval boards or other simple and "generic" 44x boards. If
| * your board has custom functions or hardware, then you will likely want to
| * implement your own board.c file to accommodate it.
| */
|
| #include <asm/machdep.h>
| #include <asm/pci-bridge.h>
| #include <asm/ppc4xx.h>
| #include <asm/prom.h>
| #include <asm/time.h>
| #include <asm/udbg.h>
| #include <asm/uic.h>
|
| #include <linux/init.h>
| #include <linux/of_platform.h>
|
| static const struct of_device_id ppc44x_of_bus[] __initconst = {
| { .compatible = "ibm,plb4", },
| { .compatible = "ibm,opb", },
| { .compatible = "ibm,ebc", },
| { .compatible = "simple-bus", },
| {},
| };
|
| static int __init ppc44x_device_probe(void)
| {
| of_platform_bus_probe(NULL, ppc44x_of_bus, NULL);
|
| return 0;
| }
| machine_device_initcall(ppc44x_simple, ppc44x_device_probe);
|
| /* This is the list of boards that can be supported by this simple
| * platform code. This does _not_ mean the boards are compatible,
| * as they most certainly are not from a device tree perspective.
| * However, their differences are handled by the device tree and the
| * drivers and therefore they don't need custom board support files.
| *
| * Again, if your board needs to do things differently then create a
| * board.c file for it rather than adding it to this list.
| */
| static char *board[] __initdata = {
| "amcc,arches",
| "amcc,bamboo",
| "apm,bluestone",
| "amcc,glacier",
| "ibm,ebony",
| "amcc,eiger",
| "amcc,katmai",
| "amcc,rainier",
| "amcc,redwood",
| "amcc,sequoia",
| "amcc,taishan",
| "amcc,yosemite",
| "mosaixtech,icon"
| };
|
| static int __init ppc44x_probe(void)
| {
| int i = 0;
|
| for (i = 0; i < ARRAY_SIZE(board); i++) {
| if (of_machine_is_compatible(board[i])) {
| pci_set_flags(PCI_REASSIGN_ALL_RSRC);
| return 1;
| }
| }
|
| return 0;
| }
|
| define_machine(ppc44x_simple) {
| .name = "PowerPC 44x Platform",
| .probe = ppc44x_probe,
| .progress = udbg_progress,
| .init_IRQ = uic_init_tree,
| .get_irq = uic_get_irq,
| .restart = ppc4xx_reset_system,
| .calibrate_decr = generic_calibrate_decr,
| };
|
|
